CORE 4X4 X-SERIES RATING SYSTEM
$ 56
"Daily Confidence"— Daily driver, light trails
CORE 4X4 X-SERIES RATING SYSTEM
Compare Series
$ 70
"Weekend Ready"— Weekend warrior, moderate off-road
CORE 4X4 X-SERIES RATING SYSTEM
$ 84
"Trail Domination"— Hardcore builder, competition
$ 56
"Daily Confidence"— Daily driver, light trails
CORE 4X4 X-SERIES RATING SYSTEM
Compare Series
$ 70
"Weekend Ready"— Weekend warrior, moderate off-road
CORE 4X4 X-SERIES RATING SYSTEM
$ 84
"Trail Domination"— Hardcore builder, competition
Not Sure Which X-Series? Compare All Three.
Same American steel. Same warranty. Same quality. Choose by how you drive.
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| Tagline | "Daily Confidence" | "Weekend Ready" | "Trail Domination" |
| Joint Type | Polyurethane Bushings | Johnny Joint (Single) | Double Johnny Joint |
| Articulation | ~30% | ~65% | ~95% |
| Tubing | 1.625" OD / 3/16" Wall DOM | 1.75" OD / 5/16" Wall DOM | 1.75" OD / 5/16" Wall DOM |
| Price | $56 | $70 | $84 |
| Maintenance | Zero | Periodic grease | Periodic grease |
| Best For | Daily driver, light trails | Weekend warrior, moderate off-road | Hardcore builder, competition |
| Warranty | Lifetime ✓ | Lifetime ✓ | Lifetime ✓ |
Made in USA
Orem, Utah
Lifetime Guarantee
Unconditional
10 Colors
In-house powder coat
Ships in 3 Days
From our UT facility
Fully Adjustable
0-6" of lift
3 X-Series Options
Only Core 4x4
Why Builders Choose Core 4x4
The only aftermarket suspension brand with an X-Series product system
vs. MetalCloak
One price point, no tier options. Core 4x4 Crawl matches their performance at a better price with a better warranty.
vs. Teraflex
Skip a grease interval? Warranty voided. Core 4x4 Cruise requires zero maintenance — and our warranty covers everything.
vs. Clayton / Budget
Cheaper arms exist. But adjustable, American-made, 10 colors, lifetime guarantee, and an upgrade path? Only Core 4x4.
Everything you need to refresh your suspension.
This rebuild kit includes all the essential components needed to replace common wear items and restore performance.
CE-9112NRK × 2
BSH-CB-7087 × 2
See It Installed
Install videos and build guides on our YouTube channel.
Watch more installs on YouTube
Reviews from Google
5.0
★
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132 reviews
AP
Ajay Paynter
Mar 4, 2026
★
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Great company, who worked with me on shipping parts to arrive in time for a show. When I explained my concern they went above and beyond to make it happen. Quality of the parts is top notch.
RC
Ryan Colligan
Mar 4, 2026
★
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I have nothing but good things to say about Core 4x4. I have the crawler series on my JKU and we take it all over the place. These parts handle everything we throw at them.
MT
Marcus Torres
Jan 15, 2026
★
★
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Best control arms I have installed on any of my builds. After running every major manufacturer, Core 4x4 is on par or better than all the high-end companies at a fraction of the cost. Lifetime warranty is the cherry on top.
JS
Jon Stempien
May 27, 2025
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Big thanks to Corby at core 4 x 4 outstanding customer service I like to thank them or 4 x 4 for helping me Well-made product in the United States recommend core 4 x 4 for all jeep Owners that like the four wheel
L
luke
Mar 24, 2021
★
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Excellent quality product and service. My l lower control arms broke and within the same day core 4x4 hooked me up with tier 2 arms and with the color I wanted. My Jeep rides better and has been solid for several months so far. 10/10 would recommend their products to anyone.
PB
Peter Busack
May 27, 2025
★
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Purchased a set of Trailing arms for my Ram 1500, quality is first class. I bought the ones with the Jonny Joints for more articulation and it appears from the construction I should get a lifetime of use, Zerk fittings are an added plus. Would defiantly recommend, and the the service team answered all of my questions.
DW
Derek Whitfield
Nov 20, 2025
★
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Solid product, the lifetime warranty sealed the deal for me. Installed on my TJ and the ride quality improved noticeably. Shipping took a bit longer than expected but the parts were worth the wait.
GV
Gil Valk
Sep 24, 2025
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Excellent service, Prompt responses when needing technical assistance, Amazing looking parts that fit excellently. I would recommend them to anyone looking for suspension components. Also very well packaged when we received the shipment, which means no damage from shipping company!! We went with the Crawl Series double adjustable kit and it definitely looks killer on our build!!!
SA
Samuel “SamDaman904” Anscher
Mar 23, 2024
★
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I meant to put this reviewing about a year ago now, but ever since I’ve had the core 4 x 4, upper and lower control arms on my 2017 ram 1500, they have worked flawlessly leave been on many offering chips, and I’ll definitely be buying new accessories from them in the future and their new upper control arms that they’re offering for all of the ram trucks. Fantastic customer service fantastic health very automotive, off-road, friendly, and any aftermarket thing for your truck or SUV that they currently have!
HK
Harold Kruder
Mar 23, 2024
★
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I needed some parts and had to replace 1 lower control arm and their customer service is great. Helped with answering my questions and got parts shipped quickly.
